JP3648768B2 - Toilet seat fall prevention device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a Western-style toilet seat self-supporting device having a toilet seat on which a person sits during defecation.
[0002]
[Prior art]
Conventionally, Western-style toilets are generally used with the toilet seat upright when used for boys.
[0003]
However, in the case where a water storage tank is provided behind the toilet bowl, the water storage tank may be attached to the toilet seat side from the normal installation position depending on the situation of the installation site. It cannot be secured.
[0004]
For this reason, in the case of boys' use, it is accompanied by troublesomeness such as holding the toilet seat by hand.
[0005]
In recent years, a cover is often attached to the toilet seat to provide a comfortable feel and warmth, and a cover is often attached to the toilet lid for a decorative effect. The thickness of these covers makes the toilet seat more independent. The above problem is increased.
[0006]
As an apparatus for solving the above problem, for example, a technique disclosed in Japanese Utility Model Laid-Open No. 60-56396 is known. The toilet pin is provided with an elastic member for preventing the reverse rotation of the hinge pin at a position in the vicinity of the cam. Is.
[0007]
[Problems to be solved by the invention]
In the conventional technology described above, a cam is projected from the tip of the hinge pin, and the cam seat is prevented from falling by pressing the cam with an elastic member. However, the tip of the hinge pin becomes a free end. Therefore, when the toilet seat rotates and the cam receives a pressing force from the elastic member, the hinge pin may be displaced with respect to the predetermined rotation axis, and the toilet seat may not be able to maintain its independence. And the above-mentioned deviation becomes more noticeable as the pressing force of the elastic member becomes stronger.
[0008]
It is a technical object of the present invention to provide a toilet seat fall prevention device that can reliably keep the toilet seat independent.
[0009]
[Means for Solving the Problems]
In order to solve the above technical problem, the technical means taken in claim 1 is provided with a hinge pin that has one end non-rotatably locked to a toilet seat and rotatably supports the toilet seat on a toilet, and the hinge pin. a cam, said cam only in a direction front Symbol the own weight in a direction in which the seat is falling as long as the large rotational torque is not generated than the rotational torque due to the seat hinge pin orthogonal to the axis of the hinge pin in order to prevent rotation and rotation preventing means acting, is that to constitute a prevention device falling of the toilet seat, characterized in that the other end of the pre-Symbol hinge pin provided with a holding member for rotatably holding.
[0010]
The technical means taken in the invention of claim 2 is that the rotation preventing means is locked to the cam so that the cam cannot be rotated, one end side is held by the locking member, and the other end side is held by the holding member. And pressing means for pressing the locking member against the cam.
[0011]
[Action]
In the first aspect of the present invention, when the toilet seat is raised, the rotation preventing means acts on the cam so that the hinge pin does not rotate unless a rotational torque larger than the rotational torque due to the weight of the toilet seat is generated, and the toilet seat falls down. Is prevented.
[0012]
According to the second aspect of the present invention, the toilet seat is prevented from falling when the toilet seat is independent by pressing the locking member toward the cam on one end side of the pressing means.
[0013]
【Example】
An embodiment according to the present invention will be described with reference to the drawings.
[0014]
FIG. 1 is a perspective view of a Western-style toilet of this embodiment, FIG. 2 is a partially enlarged view of a broken line portion in FIG. 1, and FIG. 3 is a sectional view of a holder.
[0015]
In the figure, 10 is a toilet bowl, 11 is a toilet lid, 12 is a toilet seat, and 13 is a water storage tank 14 for storing washing water therein. The toilet seat 12 is rotatably attached at a rotating portion (broken line portion in FIG. 1) of the local cleaning device 15.
[0016]
The left rotation part in FIG. 1 will be described. Of course, the right rotation part has the same structure, and the rotation part may be provided only on the right side or the left side. An engagement portion 12a is provided on the toilet tank 12 on the water storage tank 14 side, and one end of a prismatic (not necessarily prismatic) hinge pin 16 is inserted into the engagement portion 12a. It is designed to rotate integrally. The other end of the hinge pin 16 is penetrated by a cam 17 and a holding portion 18a of a holder 18 that constitutes a holding member and rotation preventing means. At this time, the cam 17 can rotate integrally with the hinge pin 16, while the holding portion 18 a of the holder 18 can rotate only the hinge pin 16. Further, the hinge pin 16 also penetrates the toilet lid 11 and the bearing member 19 attached to the base cover 15a.
[0017]
The rotation preventing means is disposed in the vicinity of the cam 17 and prevents the hinge pin 16 from rotating in the direction in which the toilet seat 12 is tilted unless a rotational torque larger than the rotational torque due to the weight of the toilet seat 12 is generated. The configuration is as follows. The holder 18 fixed to the upper surface of the housing 15a of the local cleaning device 15 and having the holding portion 18a described above, and slides in the vertical hole 18b provided in the holder 18 while being guided by the lower guide pin 20b to the cam 17. A locking member 20 having a locking projection 20a, and a pressing means that constantly urges the locking member 20 in a direction in which one end is supported by the locking member 20 and the other end is supported by the holder 18 and the locking member 20 is locked to the cam 17. A spring 21 is included.
[0018]
Next, the operation of this embodiment will be described with reference to FIG. 4A shows a state in which the toilet seat 12 has fallen, and FIG. 4B shows a state in which the toilet seat 12 has become independent.
[0019]
When the boy adds a small amount, the toilet lid 11 and the toilet seat 12 are manually operated independently. When rotational torque is applied to the toilet seat 12 to make the toilet seat 12 self-supporting, the cam 17 rotates via the hinge pin 16, and the cam 17 temporarily holds the locking member 20 against the urging force of the spring 21. Move down. Then, the protrusion 20a of the locking member 20 is locked to prevent the cam 17 from rotating again from the state (A) to the state (B) while sliding on the peripheral surface of the cam 17. Thus, by locking the cam 17 with the protrusion 20a of the locking member 20, the toilet seat 12 is prevented from falling. An appropriate value is used for the biasing force of the spring 21 depending on the opening / closing angle and weight of the toilet seat 12.
[0020]
When the toilet seat 12 is tilted, the user applies rotational torque in the direction of tilting the toilet seat 12, and the toilet seat 12 is tilted by the same operation as described above.
[0021]
In this embodiment, since the other end of the hinge pin 16 is rotatably held by the holding portion 18a of the holder 18, and the other end of the hinge pin 16 is also a fixed end, when the hinge pin rotates as in the conventional device. Further, the cam seat receives the pressing force from the elastic member, so that the hinge pin does not deviate from the predetermined rotation axis, so that the toilet seat can be made to stand on its own.
[0022]
Moreover, since the force for tilting the toilet seat 12 can be easily changed by adjusting the biasing force of the spring 21, it is easy to cope with changes in the opening / closing angle and weight of the toilet seat 12.
[0023]
【The invention's effect】
In the first aspect of the present invention, the other end of the hinge pin is held by the holding means, and the other end of the hinge pin is also a fixed end. The toilet seat can be made to stand by itself without receiving a pressure and causing the hinge pin to be displaced with respect to the predetermined rotation axis.
[0024]
In the invention of claim 2, since the force for tilting the toilet seat can be easily changed by adjusting the pressing force of the pressing member, it is easy to cope with changes in the opening / closing angle and weight of the toilet seat.
[Brief description of the drawings]
FIG. 1 shows a perspective view of a Western-style toilet.
FIG. 2 is a partially enlarged view of a broken line portion in FIG.
FIG. 3 shows a cross-sectional view of the holder.
FIG. 4 is a diagram for explaining the operation of the present embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Toilet 12 ... Toilet seat 16 ... Hinge pin 17 ... Cam 18 ... Holder 18a ... Holding part 21 ... Locking member 21a ... Projection 22 ... Spring (Pressing) Element)

Claims (2)

A hinge pin which one end is locked non-rotatably to the seat rotatably supports the toilet seat to the toilet bowl, a cam provided on the hinge pin, a large rotational torque is not generated than the rotational torque due to the weight of the previous SL seat a rotation preventing means and the hinge pin in a direction in which the seat is falling over acting on said cam only in a direction perpendicular to the axis of the hinge pin in order to prevent rotation only, rotatably holding the other end of the pre-Symbol hinge pin toilet seats falling prevention apparatus comprising: the holding member. The rotation preventing means is locked to the cam to make the cam non-rotatable, and one end side is held by the locking member and the other end side is held by the holding member, and the locking member is held by the cam. 2. The toilet seat fall prevention device according to claim 1, further comprising pressing means for pressing.

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